Effects of the project on students’ outcomes and development of survey instruments

This chapter presents the most relevant effects of the OECD-CERI pilot project on students’ outcomes and discusses the validation of the survey instruments. Furthermore, it introduces the initial findings of a class-level analysis, with a special focus on the most successful classes and the characteristics of their teachers, students and adopted pedagogical activities. Finally, it discusses the lessons learnt from the pilot phase. These are laid out by main topic and provide suggestions on how the survey operations and instruments can be improved in sight of the validation phase.